Did You Know...
...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| RE42678 | Reconfigurable optical add-drop multiplexers with servo control and dynamic spectral power management capabilities This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral characters, which are then focused onto an array of corresponding channel... | 09/06/2011 |
| RE42521 | Reconfigurable optical add-drop multiplexers employing polarization diversity This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are focused onto an array of corresponding channel microm... | 07/05/2011 |
| RE42368 | Reconfigurable optical add-drop multiplexers with servo control and dynamic spectral power management capabilities This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are then focused onto an array of corresponding channel m... | 05/17/2011 |
| 7912331 | Integrated fiber collimator and passive components Passive optical components may be used to tap the optical power, e.g., from fibers of a wavelength switch system. The passive optical components are realized by a standard photonics light-wave circuit (PLC) integrated to the fiber collimator array of the wavelength ... | 03/22/2011 |
| 7863752 | MEMS device with integrated via and spacer A MEMS device and fabrication method are disclosed. A bottom substrate having an insulating layer sandwiched between an upper layer and a lower layer may be bonded to a device layer. One or more portions of the upper layer may be selectively removed to form one or m... | 01/04/2011 |
| 7756368 | Flex spectrum WSS Switching optical signals containing a plurality of spectral channels characterized by a predetermined channel spacing is described. A selected beam deflector array may be selected from among a plurality of available beam deflector arrays configured to accommodate s... | 07/13/2010 |
| 7539371 | Optical apparatus with reduced effect of mirror edge diffraction A micromirror for use in an optical apparatus may comprise a reflective portion, configured to be rotatable about a switching axis and an attenuation axis that is different from the switching axis. The reflective portion may include an edge that is substantially par... | 05/26/2009 |
| 7263253 | Optimized reconfigurable optical add-drop multiplexer architecture with MEMS-based attenuation or power management A wavelength selective switch architecture for ROADMs for switching the spectral channels of a multi-channel, multi-wavelength optical signal between input and output ports employs a biaxial MEMS port mirror array for optimal coupling efficiency and ITU grid alignme... | 08/28/2007 |
| 7209274 | High fill-factor bulk silicon mirrors A method and apparatus for fabricating a MEMS apparatus having a device layer with an optical surface that is supported by a pedestal on a planar support layer that is suspended for movement with respect to a base support by hinge elements disposed in a different pl... | 04/24/2007 |
| RE39525 | Reconfigurable optical add and drop modules with servo control and dynamic spectral power management capabilities This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are then focused onto an array of corresponding channel m... | 03/20/2007 |
| RE39515 | Reconfigurable optical add-drop multiplexers employing polarization diversity This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are focused onto an array of corresponding channel microm... | 03/13/2007 |
| 7177496 | Optical spectral power monitors employing time-division-multiplexing detection schemes The present invention provides a method and apparatus for optical spectral power monitoring that employ a time-division-multiplexed detection scheme. The optical spectral power monitoring apparatus of the present invention uses a wavelength-dispersing means such as ... | 02/13/2007 |
| 7164859 | Free-space dynamic wavelength routing systems with interleaved channels for enhanced performance A novel wavelength routing apparatus is disclosed, which uses a diffraction grating to separate a multi-wavelength optical signal from an input port into multiple spectral channels; a channel-interleaving assembly (e.g., an array of prisms) to interleave the spectra... | 01/16/2007 |
| RE39411 | Reconfigurable all-optical multiplexers with simultaneous add-drop capability The invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are then focused onto an array of corresponding channel mi... | 11/28/2006 |
| RE39397 | Reconfigurable optical add-drop multiplexers with servo control and dynamic spectral power management capabilities This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral characters, which are then focused onto an array of corresponding channel... | 11/14/2006 |
| RE39331 | Reconfigurable optical add-drop multiplexers with servo control and dynamic spectral power management capabilities This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are then focused onto an array of corresponding channel m... | 10/10/2006 |
| 7057796 | Micromirror position sensing units for reconfigurable optical systems This invention provides a wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels that are communicated to an array of channel micromirrors, and which i... | 06/06/2006 |
| 6909819 | System and method for canceling disturbance MEMS devices A system and method for canceling disturbance in a MEMS device. The system 200 includes a MEMS device 203, which may include a substrate 205 and a plurality of individually movable MEMS elements 203-1 through 203-N, and a co... | 06/21/2005 |
| 6879750 | Reconfigurable optical add-drop multiplexers with servo control and dynamic spectral power management capabilities This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are then focused onto an array of corresponding channel m... | 04/12/2005 |
| 6820988 | Bulk silicon mirrors with hinges underneath This invention provides method and apparatus for fabricating a MEMS apparatus having a bulk element with hinges underneath. The bulk element may comprise single-crystal silicon, fabricated by way of bulk micromachining techniques. The hinges may be made of thin-film... | 11/23/2004 |
| 6804428 | Optical spectral power monitors employing polarization deversity scheme This invention provides a method and apparatus for spectral power monitoring by use of a polarization diversity scheme. In the present invention, a multi-wavelength optical signal is first decomposed into first and second polarization components, and the second pola... | 10/12/2004 |
| 6760511 | Reconfigurable optical add-drop multiplexers employing polarization diversity This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are focused onto an array of corresponding channel microm... | 07/06/2004 |
| 6753960 | Optical spectral power monitors employing frequency-division-multiplexing detection schemes The present invention provides a method and apparatus for optical spectral power monitoring employing novel frequency-division-multiplexing detection schemes. The optical spectral power monitoring apparatus of the present invention uses a wavelength-dispersing means... | 06/22/2004 |
